diff options
Diffstat (limited to 'tests/core/encoding')
| -rw-r--r-- | tests/core/encoding/uuid/test_core_uuid.odin | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/tests/core/encoding/uuid/test_core_uuid.odin b/tests/core/encoding/uuid/test_core_uuid.odin index 9f2d9c312..895de3863 100644 --- a/tests/core/encoding/uuid/test_core_uuid.odin +++ b/tests/core/encoding/uuid/test_core_uuid.odin @@ -34,6 +34,54 @@ test_version_and_variant :: proc(t: ^testing.T) { } @(test) +test_timestamps :: proc(t: ^testing.T) { + // This test makes sure that timestamps are recoverable and have not been + // overwritten by neighboring bits, taking into account precision loss. + context.random_generator = crypto.random_generator() + + N :: max(i64) + + max_time := time.Time { N } + + mac: [6]byte + v1 := uuid.generate_v1(0, mac, max_time) + v6 := uuid.generate_v6(0, mac, max_time) + v7 := uuid.generate_v7(max_time) + // The counter version keeps its time in the same place as the basic version, + // this is just for the sake of completeness. + v7_counter := uuid.generate_v7(0, max_time) + + v1_time := uuid.time_v1(v1) + v6_time := uuid.time_v6(v6) + v7_time := uuid.time_v7(v7) + v7_counter_time := uuid.time_v7(v7_counter) + + // I hope the compiler doesn't ever optimize this out. + max_time_hns_resolution := time.Time { N / 100 * 100 } + max_time_ms_resolution := time.Time { N / 1e6 * 1e6 } + + testing.expectf(t, + time.diff(max_time_hns_resolution, v1_time) == 0, + "v1 UUID timestamp is invalid, expected %x, got %x", + max_time_hns_resolution, v1_time) + + testing.expectf(t, + time.diff(max_time_hns_resolution, v6_time) == 0, + "v6 UUID timestamp is invalid, expected %x, got %x", + max_time_hns_resolution, v6_time) + + testing.expectf(t, + time.diff(max_time_ms_resolution, v7_time) == 0, + "v7 UUID timestamp is invalid, expected %x, got %x", + max_time_ms_resolution, v7_time) + + testing.expectf(t, + time.diff(max_time_ms_resolution, v7_counter_time) == 0, + "v7 UUID (with counter) timestamp is invalid, expected %x, got %x", + max_time_ms_resolution, v7_counter_time) +} + +@(test) test_legacy_namespaced_uuids :: proc(t: ^testing.T) { TEST_NAME :: "0123456789ABCDEF0123456789ABCDEF" |